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公开(公告)号：KR100948260B1
公开(公告)日：2010-03-18
申请号：KR1020070133763
申请日：2007-12-18
Applicant: 한국전자통신연구원
IPC: H04N21/2381 , H04N7/20 , H04N21/2343 , H04N21/438 , H04N21/61 , H04N21/63 , H04N21/647 , H04H20/51 , H04N19/30
CPC classification number: H04N21/2381 , H04H20/51 , H04N7/20 , H04N21/234327 , H04N21/4381 , H04N21/6143 , H04N21/6193 , H04N21/631 , H04N21/64792
Abstract: 본 발명은 계층적 부호화를 이용한 다중대역 방송 전송/수신 장치 및 그 방법에 관한 것으로서, 비디오 데이터를 계층적으로 부호화해서 계층별로 서로 다른 전송 대역을 통해서 전송함으로써, 다채널 방송 서비스(특히, 다채널 위성방송 서비스)의 전송 대역 문제를 해결하면서도 위성방송 서비스의 가용도를 증가시키고자 한다.
이를 위하여, 본 발명은, 계층적 부호화를 이용한 다중대역 방송 전송 장치에 있어서, 비디오 데이터를 계층적 부호화하여 복수의 계층적 비디오 스트림을 생성하기 위한 비디오 인코딩 수단; 상기 복수의 계층적 비디오 스트림 및 프로그램 구성정보를 다중화하여 전송스트림(TS)을 생성하기 위한 다중화 수단; 및 상기 전송스트림의 패킷을 데이터 유형에 따라 복수의 계층으로 분할하여 계층별로 서로 다른 전송 대역을 통하여 전송하기 위한 다중대역 전송 수단을 포함하는 것을 특징으로 한다.
DVB-S2, 위성방송 서비스, 계층적 부호화, 스케일러블 비디오 코딩, 계층적 전송, 계층 분할, 계층 결합, 다중대역 전송-
公开(公告)号：KR1020090093195A
公开(公告)日：2009-09-02
申请号：KR1020080018577
申请日：2008-02-28
Applicant: 한국전자통신연구원 , 아주대학교산학협력단
CPC classification number: H01Q9/0442 , H01Q5/357 , H01Q9/0407
Abstract: A microstrip antenna with two slots is provided to control a resonant frequency independently by changing the length, the width, and the position of two slots. A microstrip antenna includes a conductive plate(110), a substrate(120) and a coaxial line(150). The conductive plate has a first hole. The substrate is positioned on the conductive plate. The microstrip pitch(130) is formed in an upper part of the substrate. The microstrip patch has a second hole. Two slots with the different size are inserted into the microstrip patch. Two slots are a first Y slot and a second Y slot. The size of the first Y slot is greater than the size of the second Y slot. The first Y slot induces the low resonant frequency. The second Y slot induces the high resonant frequency. The coaxial line contacts the microstrip patch by passing through the first and second holes.
Abstract translation: 提供具有两个槽的微带天线，通过改变两个槽的长度，宽度和位置来独立地控制谐振频率。 微带天线包括导电板（110），基板（120）和同轴线（150）。 导电板具有第一孔。 衬底位于导电板上。 微带间距（130）形成在基板的上部。 微带贴片有一个第二个孔。 将两个尺寸不同的插槽插入微带贴片。 两个插槽是第一个Y插槽和第二个Y插槽。 第一个Y槽的尺寸大于第二个Y槽的大小。 第一个Y槽引起低谐振频率。 第二个Y槽引起高共振频率。 同轴线通过第一和第二孔接触微带贴片。
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公开(公告)号：KR1020080050929A
公开(公告)日：2008-06-10
申请号：KR1020070024379
申请日：2007-03-13
Applicant: 한국전자통신연구원
CPC classification number: H04B7/18536 , H04B7/2606 , H04H20/02 , H04H40/90
Abstract: An apparatus and a method for controlling the gain of a burst signal in a bi-directional satellite communication system are provided to prevent degradation of performance caused by a signal attenuation. A burst signal and a pilot signal are received from a terminal(601), and the pilot signal is detected from the received signals(602). The strength of the detected pilot signal is measured and compared with a threshold value, and a gain control value is generated according to the comparison result(the attenuated amount)(603). The gain of the received burst signal is controlled by using the generated gain control value(604).
Abstract translation: 提供了一种用于控制双向卫星通信系统中的突发信号的增益的装置和方法，以防止信号衰减引起的性能下降。 从终端（601）接收到突发信号和导频信号，并根据接收到的信号（602）检测导频信号。 测量检测到的导频信号的强度并与阈值进行比较，并根据比较结果（衰减量）生成增益控制值（603）。 通过使用所生成的增益控制值来控制所接收的脉冲串信号的增益（604）。
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公开(公告)号：KR100797395B1
公开(公告)日：2008-01-28
申请号：KR1020070019616
申请日：2007-02-27
Applicant: 한국전자통신연구원
CPC classification number: H01P1/161 , H01Q21/245 , H04B1/18
Abstract: A transducer having three ports in an orthogonal mode, a receiver using the same and a method thereof are provided to divide a vertical or a horizontal signal of a K band into two signals whose angles are +45 and -45 degrees, finds an optical position via a rotational operation for making strength of the two signals identical, and synthesizes the received two signals for receiving the best satellite signal at an optimal position. A transducer having three ports in an orthogonal mode comprises a transmitting port(210), the first receiving port(220) and the second receiving port(230). The transmitting port(210) forms a rectangular shape whose horizontal side is longer than the vertical side and transmits a vertical signal of a Ka band. The first receiving port(220) forms a rectangular shape which is slanted by +45 degrees on a position along +45 degrees centering on the transmitting port(210) and receives a vertical or a horizontal signal of a K band whose phase is delayed by +45 degrees. The second receiving port(230) forms a rectangular shape which is slanted by -45 degrees on a position along -45 degrees centering on the transmitting port(210) and receives a vertical or a horizontal signal of a K band whose phase is delayed by -45 degrees.
Abstract translation: 提供具有正交模式的三个端口的传感器，使用该端口的接收机及其方法，用于将K波段的垂直或水平信号分成角度为+45和-45度的两个信号，找到光学位置 通过用于使两个信号的强度相同的旋转操作，并且合成所接收的两个信号以在最佳位置接收最佳卫星信号。 具有正交模式的三个端口的换能器包括发送端口（210），第一接收端口（220）和第二接收端口（230）。 发送端口（210）形成水平侧比垂直侧长的矩形形状，并发送Ka波段的垂直信号。 第一接收端口（220）形成矩形形状，其以在发送端口（210）为中心的+45度的位置上倾斜+45度，并且接收相位被延迟的K频带的垂直或水平信号 +45度。 第二接收端口（230）形成在沿着发送端口（210）的-45度的位置上倾斜-45度的矩形形状，并且接收相位被延迟的K波段的垂直或水平信号 -45度。
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公开(公告)号：KR100456476B1
公开(公告)日：2004-11-09
申请号：KR1020020082857
申请日：2002-12-23
Applicant: 한국전자통신연구원
IPC: H04L27/34
CPC classification number: H04B1/7136 , H04B2001/71365
Abstract: Disclosed is a frequency hopping system for converting frequencies of signals into RF (radio frequency) signals, which comprises: a frequency hopper (200) for outputting signals with temporarily varied frequencies according to a predetermined pattern; a fixed PLL (phase locked loop) unit (500) for outputting frequency-fixed signals; a mixer (400) for mixing the output signals of the frequency hopper and the fixed PLL unit, and outputting frequency-hopped local signals; and a modulator (100) for receiving I and Q (in-phase and quadrature-phase) signals from a baseband device, synthesizing the I and Q signals with the frequency-hopped local signals, combining the two synthesized signals, and outputting RF signals.
Abstract translation: 本发明公开了一种用于将信号的频率转换为RF（射频）信号的跳频系统，其包括：跳频器（200），用于根据预定模式输出临时变化频率的信号; 固定的PLL（锁相环）单元（500），用于输出频率固定的信号; 混频器（400），用于混频跳频器和固定PLL单元的输出信号，并输出跳频的本地信号; 和一个调制器（100），用于接收来自基带设备的I和Q（同相和正交相位）信号，将I和Q信号与跳频的本地信号进行合成，组合这两个合成信号并输出RF信号 。 ＆lt;图像＆GT;
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Patent Agency Ranking
公开(公告)号：KR101906655B1
公开(公告)日：2018-10-11
申请号：KR1020150161929
申请日：2015-11-18
Applicant: 한국전자통신연구원
Inventor： 유준규
CPC classification number: H04B7/18519 , H04B7/185 , H04B7/1851 , H04B7/212 , H04B7/2656 , H04L7/0008 , H04N21/8547 , H04W56/0015
Abstract: 본발명은중심국의간섭신호제거장치및 방법에관한것이다. 본발명에따른장치는, 중심국과신호를송수신하는통신부, 중심국으로부터위성국으로송신되는중심국의송신신호가상기통신부를통해수신되면, 상기수신된중심국의송신신호를저장하는저장부, 및중심국의송신신호의채널과동일한채널상에단말국의신호가중첩된중첩신호가수신되면, 현재시점의제1 시간동기정보(NCR) 및상기중첩신호에포함된제2 시간동기정보(NCR)를추출하여두 시간동기정보의차이값을산출하고, 상기차이값에근거하여이전시점에상기저장부에저장된중심국의송신신호를추출하여상기중첩신호에포함된간섭신호를제거하는신호처리부를포함한다.
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公开(公告)号：KR101828104B1
公开(公告)日：2018-03-22
申请号：KR1020130105985
申请日：2013-09-04
Applicant: 한국전자통신연구원
CPC classification number: H03M1/662 , H03M1/0624 , H03M1/66
Abstract: 본발명의실시예는고속신호처리를위한 DAC 장치들사이의동기화방법과그 시스템에관한것이다. 다중 DAC 장치의동기화방법에있어서, MUX DAC 장치에클럭을입력하는단계; 클럭을제1 클럭과제2 클럭으로나누는단계; 제1 클럭과제2 클럭사이의위상차이를 D 플립플롭으로전달하는단계; 및위상차이를처리하여제1 클럭과제2 클럭을동기화하는단계를포함하는다중 DAC 장치의동기화방법이제공될수 있다.
Abstract translation: 本发明的一个实施例涉及用于高速信号处理的DAC器件之间的同步方法及其系统。 一种用于同步多个DAC器件的方法，包括：向MUX DAC器件输入时钟; 用第一个时钟任务2时钟划分一个时钟; 将第一时钟任务和第二时钟任务之间的相位差传送到D触发器; 并且处理相位差以同步第一时钟任务2时钟，可以提供同步多个DAC器件的方法。
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公开(公告)号：KR1020150086900A
公开(公告)日：2015-07-29
申请号：KR1020140007094
申请日：2014-01-21
Applicant: 한국전자통신연구원
IPC: H04L12/46
CPC classification number: H04B7/18528
Abstract: 본발명에따른제1 단말은, VSAT(very small aperture terminal) 시스템내의중심국네트워크관리장치에연결된복수의단말중 제1 단말에있어서, 성형망을통해상기중심국네트워크관리장치에연결하는통신부; 및상기복수의단말중 다른단말과의 SCPC(Single Channel Per Carrier) 연결을수행하고자할 때, SCPC 호설립요청정보를생성하고, 상기생성된 SCPC 호설립요청정보를상기통신부를통해상기중심국네트워크관리장치에전송하고, 상기전송된 SCPC 호설립요청정보에응답하여상기중심국네트워크관리장치로부터전송되는 SCPC 호설립정보를근거로상기다른단말과의 SCPC 연결을수행하는제어부;를포함한다.
Abstract translation: 本发明涉及第一终端，更具体地说，涉及在非常小孔径终端（VSAT）系统中连接到中心站的网络管理装置的多个终端中的第一终端。 第一终端包括：通过星形网络连接到中心站的网络管理装置的通信单元; 以及控制单元，其生成每个载波单个信道（SCPC）呼叫建立请求信息以建立到另一个终端的SCPC连接，通过通信单元将SCPC呼叫建立请求信息发送到中心站的网络管理装置 并且根据发送的SCPC呼叫建立请求信息，基于从中央站的网络管理装置发送的SCPC呼叫建立请求信息，建立到另一终端的SCPC连接。
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公开(公告)号：KR1020140068563A
公开(公告)日：2014-06-09
申请号：KR1020120136198
申请日：2012-11-28
Applicant: 한국전자통신연구원
CPC classification number: H04N21/44209 , H04H20/42 , H04H40/90 , H04N7/20 , H04N21/4382 , H04N21/6143
Abstract: Provided are an apparatus and a method for receiving a satellite broadcast. The apparatus for receiving a satellite broadcast predicts a channel by using a received signal-to-noise ratio (SNR) information, determines an image signal to be received, among two or more image signals, according to the predicted channel, and controls to selectively receive the determined image signal.
Abstract translation: 提供了一种用于接收卫星广播的装置和方法。 用于接收卫星广播的装置通过使用接收到的信噪比（SNR）信息来预测信道，根据预测的信道在两个或更多个图像信号之间确定要接收的图像信号，并且选择性地控制 接收确定的图像信号。
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公开(公告)号：KR1020120042354A
公开(公告)日：2012-05-03
申请号：KR1020100104022
申请日：2010-10-25
Applicant: 한국전자통신연구원
CPC classification number: H04N21/6143 , H04N21/23608 , H04N21/242
Abstract: PURPOSE: A dual mode network synchronization apparatus of a center station for a satellite communication system and method thereof are provided to operate a satellite communication system regardless of a network synchronization method. CONSTITUTION: A timing creation unit(230) is synchronized with a PPS(Pulse Per Second) signal received from a reference clock creation module. The timing creation unit creates an interrupt signal. An NCR counter(220) extracts NCR values corresponding to a point directed by the interrupt signal. A packet creation unit(240) creates MPEG2-TS(Moving Picture Expert Group 2-Transport Stream) packets. The MPEG2-TS packet includes the NCR value extracted by the interrupt signal.
Abstract translation: 目的：提供一种用于卫星通信系统的中心站的双模网络同步装置及其方法，用于操作卫星通信系统，而不管网络同步方法如何。 构成：定时创建单元（230）与从参考时钟创建模块接收的PPS（每秒脉冲）信号同步。 定时创建单元创建一个中断信号。 NCR计数器（220）提取对应于由中断信号指向的点的NCR值。 分组创建单元（240）创建MPEG2-TS（运动图像专家组2传输流）分组。 MPEG2-TS分组包括由中断信号提取的NCR值。
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